Electricity generation



April RQP. LANSIILIGI 2.199.319

ELECTRICITY GENERATION Filed Jan. 24, 1939 INVENTOR. Raymond PLanw/y mz; fir a,

A ORNE Patented Apr. 30, 1940 Q UNITED STATES PATENT OFFICE ELECTRICITY GENERATION Raymond P. Lansing, Montclair, N. .L, assignor to Bendix Aviation Corporation, South Bend, Ind., a corporation of Delaware Application January 24, 1939, Serial No. 252,679

4 Claims. (Cl. 290-52) This invention relates to internal combustion pipe 20 leading to a closed casing 2i attached to engines and particularly to lubrication thereof. an electric generator 22, and tapped from pipe An object of the invention is to. produce gen- 20 is a pipe 23 with a by-pass valve 24 which in eration of electric current by the diversion of turn is connected by a pipe 25 with the top of 5 lubricating oil from the engine's lubricating sysreservoir I8. A similar valve 26 is interposed in 5 the first length of the pipe 20 to control the As disclosed herein the current generation reamount of oil diverted from conduit ID to the sults from utilizing the pressure prevailing in the pipe 20. The casing 2I is connected by a pipe 21 lubricating system, as by tapping into the preswith the reservoir I8 at a point near the upper sure side of the system and directing the oil thus surface thereof. The by-pass valve 24 includes 10 diverted (with its pressure regulated by suitable a casing within which operates a valve 33 normeans) to a rotatable element having driving remally closing the entrance to such casing from lation to a current generating machine. the pipe 23, and opening only when the pressure Other objects and phases of the invention will exceeds the strength of the coil spring 34, tendappear as the description of the particular physiing to hold such valve seated. When the pres- 15 cal embodiment selected to illustrate the invensure of the oil delivered from the pump 9 exceeds tion progresses, and as reference is made to the a predetermined amount, the oil is by-passed accompanying drawing constituting part of the through the pipes and 21; and when the presdisclosure. It is to be expressly understood, howsure reaches a 'still higher value some of the oil 20 ever, that the drawing is for the purpose of illusis by-passed a second time, this time through the 20 tration only, and is not designed as a definition pipes 23 and 25, with the result that the pressure of the limits of the invention, reference being had of the oil admitted to the casing 2I is predeterto the appended claims for this purpose. mined and kept substantially constant.

In the drawing: Within the casing 2i there is mounted a rotat- 25 Fig. l is a diagram showing the relationship of able wheel 28 having a series of peripheral vanes 25 the generator driving means to the lubricating 29, the wheel being secured to a shaft 30 which is System 9 e ne; .the extended armature shaft of the generator Fig. 2 is an enlarged sectional view on the line that passes through suitable stufiing boxes 3i in 2-2 of Fig. l; and the end plate 32 of the generator and transversely 30 Fig. 3 is a detailed section on the line 3-3 of of the casing 2I, as shown in Fig. 1. This gen- 30 erator 22 otherwise is of the usual character and The engine is shown as of the type having a pluis connected in the ordinary manner by means of rality of pistons Ii disposed on both sides of a wires or cables to a battery (not shown) and/or crankshaft I to which they are drivably conother devices to be energized.

35 nected by the usual rods 8, and also having an oil When the engine is operating a constant sup- 35 pump 9 feeding lubricating oil to a conduit III at ply of lubricating oil is fed to the crankshaft and sufficient pressure to assume a suitable supply of connecting passages by way of pump outlet It lubricating oil to the engine crankshaft -'I and and conduit ill; but some of 'the supply is diparts connected therewith. The pump 9, as repverted, under the control of the valve 26, and

40 resented, has apair of inter-meshed gears II, I2 flows along the pipe 20 to the'casing 2|. The 40 adapted to rotate within a chamber to which the pipe 20 enters this casing in such a manner as to fluid has ingress by way of conduit I3 and egress cause the oil to impinge against the vanes or by way of conduit II. A shaft (indicated schepockets of the wheel 28, the vanes being prefermatically at It in Fig. 1) connects gear II with ably of the cross section shown in Fig. 3. This a gear train IE to provide motion transmitting wheel is thereby rotated and constitutes a tur- 45 means to the said gear II from the crankshaft I, bine for rotating the generator at a substantially for transmission of driving torque from the enconstant speed during the engine operation and ginetothe pump. 1 regardless of the speed of such engine. The oil The pump inlet I 3 is connected to a closed under pressure having thus performed its work is reservoir I8 through the medium of a suitable led from the casing 2| to the reservoir It by 50 conduit I! having a check valve therein. This means of the pipe 21. The suction of the pump reservoir I8 contains a proper supply of oil, and draws the oil from the tank I8 upwardly through the pipe I! extends into this body of oil at a point the pipe I'I, past the check valve I9, and into the near the bottom of the tank as shown in Fig. 1. inlet I3 of the pump. This completes a circuit Tapped into conduit I0 (near outlet I4) is a of the oil under pressure. 55

My system thus permits of the operation of the generator at constant speed throughout practically the entire range of operating speeds of the engine, whereby, if a constant load is connected to the generator, no other means of regulation is necessary.

What is claimed is:

1. In combination with an internal combustion engine of the pressure lubricated type, and including as a part thereof an oil pump driven thereby and an engine lubricating duct leading from said pump to other rotatable parts of the engine, an electric generator having an oil receiving driving element in driving relation there-' to, means for leading oil from said lubricatingthereby and an engine lubricating duct leadingfrom said pump toother rotatable parts of the engine, an electric generator having an oil receiving driving element in driving. relation thereto, means for leading oil from said lubricating duct to said oil receiving driving element, said therein biased to the closed position, and a third duct alsohaving a valve biased to the closed position, said third duct being connected with said second duct at a point between said firstnamed valve and said generator.

3. In combination with an internal combustion engine including as a part thereof an oil pump driven thereby, an electric generator having an oil receiving driving element in drivingrelation thereto, means for leading oil to said generator driving element from said oil pump, means for by-passing oii around said generator driving element, and means for maintaining unrestricted flow to said generator driving element notwithstanding simultaneous operation of said by-passing means.

4. In combination with an internal combustion engine including as a part thereof a fluid pump driven thereby, an electric'generator having a fluid receiving driving element in driving relation thereto, means for leading fluid to said generator driving element from said fluid pump, means for by-passing fluid around said generator driving element, and means for maintaining unrestricted flow to said generator driving element notwithstanding simultaneous operation of said by-passing means.

RAYMOND P. LANSING. 

